JP2001233201A - Emergency escape door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency escape door device easily openable without performing complicated operation such as pushing an emergency door panel while continuously operating a lock release and automatically lockable after evacuation. SOLUTION: The emergency door panel 16 opened and closed in turning and this emergency escape door device for locking the emergency door panel 16 in a closing state at ordinary time, are featured by having lock pins 40b, 41b arranged in the emergency door panel 16 and switched to a lock position and a release position for releasing a lock, compression springs 44, 45 for always energizing the lock pins 40b, 41b to the lock side, an operation lever 43 for switching the lock pins 40b, 41b to the release position against energizing force by the compression springs 44, 45 and a shutter mechanism 46 for holding the lock pins 40b, 41b switched to the release position in the release position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency escape door device provided for emergency opening of an automatic door device, and more particularly to an emergency escape door device suitable for a screen door installed on a platform.

[0002]

2. Description of the Related Art Conventionally, a platform screen door installed on a track side edge of a platform for the purpose of ensuring passenger safety is provided when a train does not stop at a fixed position on the platform or when a train must be opened and closed. Emergency escape door devices are arranged at predetermined intervals so that passengers can evacuate to the platform in the event of an emergency such as a breakdown.

[0003] The emergency door panel of this emergency escape door device is locked by a lock mechanism so that passengers on the platform do not accidentally open and enter the track side in normal times. This lock mechanism is usually built in the emergency door panel, and for example, a so-called Gremon lock configured to move a pair of upper and lower rods with respect to a frame around the emergency door panel is used.

[0004] In an emergency, the emergency door panel can be unlocked by operating the panic lever provided on the glemon lock from the track side, or by a station worker unlocking from the platform side. The emergency door panel, which has been released, can be opened by manually pushing toward the platform side or by pulling by a station staff.

[0005]

However, the above-mentioned emergency escape door device has the following problems. That is,
Since the upper rod and the lower rod for locking or unlocking the emergency door panel with respect to the frame are always urged to the lock side, the passengers trying to evacuate need to apply the urging force when opening the emergency door panel. However, there is a problem that a complicated operation of pushing and turning the emergency door panel while keeping the panic lever pressed down against the problem has to be performed.

[0006] Further, if the emergency door panel is left open after the passengers have evacuated to the platform, there is a risk that a person on the platform may accidentally go out to the track side. There is also a problem that the original function of the platform screen door cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems in the conventional escape door device for a platform screen door. In an emergency, the door can be opened by a simple operation and can be evacuated quickly. It is an object of the present invention to provide an emergency escape door device which can automatically return to a closed state after evacuation to ensure the safety of passengers on a platform.

[0008]

According to a first aspect of the present invention, there is provided an emergency door panel which is pivotally opened and closed. The emergency door panel is normally locked in a closed state, and is unlocked by receiving an unlocking operation. The emergency escape door device is configured to be openable by being provided on one side of an emergency door panel or a frame supporting the emergency door panel, and can be switched between a lock position and a release position for releasing the lock. A lock member, a biasing means for constantly biasing the lock member toward the lock side, a lock release operation means for switching the lock member to the release position against the biasing force of the biasing means, and a lock release by the lock release operation means An emergency exit door comprising: a release holding unit that holds a lock member switched to a release position by an operation at the release position. It is the location.

According to a second aspect of the present invention, there is provided an emergency escape door device wherein the release holding means is configured to stop holding the unlocked state when the emergency door panel returns to the closed position.

According to a third aspect of the present invention, the lock member comprises a rod which locks when it advances, and releases the lock when it retreats, and the release holding means includes a locking member which can be disengaged from the rod. The locking member moves to a position where the rod can be advanced when the emergency door panel is closed, and advances the rod in conjunction with the retraction of the rod when an unlocking operation is performed. An emergency exit door device configured to move to a blocking position.

According to a fourth aspect of the present invention, when the emergency door panel is closed, the locking member contacts the frame or a stop piece extending from the frame to allow the rod to advance. An emergency exit door device configured to move to a position.

According to a fifth aspect of the present invention, the locking member comprises a slidably movable shutter having a through-hole. The rod is advanced through the through-hole at the time of locking, and the position of the through-hole is unlocked at the time of unlocking. An emergency exit door device configured to be moved from a position.

According to a sixth aspect of the present invention, there is provided a door closer main body and a telescopic arm extending from the door closer main body, and the telescopic arm is connected to the emergency door panel such that the emergency door panel opens and closes as the telescopic arm expands and contracts. The door closer body is an emergency escape door device configured to bias the telescopic arm in a direction to close the emergency door panel, and housed in the frame.

According to a seventh aspect of the present invention, there is provided an emergency escape door device configured to roll a roller provided at a distal end portion of a telescopic arm in a groove formed along an upper frame of an emergency door panel.

An eighth aspect of the present invention is an emergency escape door device for a platform screen door, wherein the emergency escape door device according to any one of the first to seventh aspects is disposed in a part of the platform screen door. is there.

According to the first aspect of the present invention, when the lock is released by retracting the lock member against the urging force of the urging means, the release holding means continues to hold the lock member at the retracted position. In addition, the evacuee does not need to perform a complicated operation of pressing the emergency door panel while continuing to operate the unlock, and the emergency door panel can be easily opened by performing the unlock operation once.

According to the second aspect of the present invention, when the emergency door panel is closed, the release holding means stops unlocking and holding, so that the locking member is switched to the locked position by the urging force of the urging means, and the emergency door panel is closed. Locked in position. Therefore, the door is automatically locked when the emergency door panel is closed, so that accidents due to forgetting to lock the key can be prevented.

According to the third aspect of the present invention, when the emergency door panel is closed, the locking member moves to a position where the rod can be advanced, and when an unlocking operation is performed, the locking member moves in conjunction with the retraction of the rod. Move to a position where the rod is prevented from advancing.

According to the fourth aspect of the present invention, when the emergency door panel is closed, the locking member comes into contact with the frame or the stop piece extended from the frame, and the rod is moved to a position where the rod can be advanced. Moving. Therefore, the lock can be restored without requiring any special device.

According to the fifth aspect of the present invention, the locking member is
Since it is constituted by a slidable shutter having a through-hole, the rod can be advanced through the through-hole at the time of locking, and the position of the through-hole can be moved from the locked position at the time of unlocking. It can be realized with a configuration.

Further, since the locking member is constituted by a shutter made of, for example, a thin plate member, it can be compactly accommodated in the upper frame of the emergency door panel where space is limited, and the design is not impaired.

According to the present invention, since the emergency door panel opened at the time of escape is automatically closed by the door closer, the emergency door panel is quickly closed after the evacuee escapes. Moreover, the closed emergency door panel can be automatically locked by cooperating with the release holding means for stopping the unlocking when the emergency door panel returns to the closed position.

Further, since the door closer main body is housed in the frame, the thickness of the upper frame of the emergency door panel can be reduced, and the appearance of the emergency door panel can be enhanced.

According to the seventh aspect of the present invention, the telescopic arm can be connected via the roller only by providing a groove in the upper frame of the emergency door panel.

According to the eighth aspect of the present invention, the emergency escape door device can be opened with a simple operation, and the evacuation can be quickly evacuated from the track side to the platform side. Further, in the vehicle equipped with the door closer, it is possible to prevent the emergency door panel from being forgotten to be locked, thereby ensuring the safety of passengers on the platform. Furthermore, when the door closer main body is housed in the frame, the flat screen structure of the platform screen door can be maintained to improve the appearance.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 shows a configuration of a platform screen door to which the emergency escape door device of the present invention is applied. In the figure, screen panels 11, 11 arranged on both left and right sides and the screen panels 11, 11 are shown.
A screen door unit 14 is configured by the door panels 12 and 13 disposed between the screen doors, and a platform screen door 15 is configured by connecting a large number of the screen door units 14.

When the vehicle arrives at the platform, the door panels 12 and 13 open and close in accordance with the opening and closing of the side door of the vehicle. In the drawing, ED is an emergency escape door device of the present invention installed in another screen door unit 14 ', and constitutes a part of the platform screen door 15.

FIG. 2 is an enlarged view of a portion A in FIG. 1 and shows another screen door unit 14 'viewed from the platform side. In FIG. 2, a screen door unit 14 'has a screen panel 11 arranged on the left side of sliding door type door panels 12 and 13 which open and close in the left-right direction, and an emergency door panel 16 of the emergency escape door device ED arranged on the right side.

Each of these panels is hung from a cylindrical header box 17, and the header box 1
7 is connected via a suspension position adjusting mechanism 18 to an H-section steel 19 fixed to the ceiling structure SC.

A traveling rail 20 is provided in the header box 17 in the cylinder axis direction, and door panels 12 and 13 are suspended from the traveling rail 20. A pair of door hangers 12 from both sides of the upper frame of the door panel 12
a, 12a are extended, and the door wheels 12b, 12b pivotally supported at the tip of each door hanger 12a are connected to the traveling rail 20.
It rolls on top. Similarly, with respect to the door panel 13, the door rollers 13 b and 13 b of the door hanger 13 a roll on the traveling rail 20.

In parallel with and above the running rail 20,
A timing belt 21c which is stretched around the driving sprocket 21a and the driven sprocket 21b and circulates between the two sprockets is disposed.
The door hanger 12a of the door panel 12 is fixed to the lower side, and the door hanger 13a of the door panel 13 is fixed to the upper side.

Therefore, when the drive engine sprocket 21a is rotated in the forward or reverse direction by the door engine 21d, the timing belt 21c reciprocates in the direction of the black arrow, and the door panels 12, 13 are moved through the door hangers fixed to the timing belt 21c. Is opened in the direction of the white arrow. The driving operation of the door engine 21d is controlled by a controller 22 housed in the header box 17.

Screen panel 11, door panel 12,
13 and emergency door panel 16 have platform 4 at the lower end.
Rail unit (described later) provided at the track side edge
23. The emergency door panel 16 can be opened in the direction of arrow C, that is, toward the platform, as shown in FIG. 3 (a cross-sectional view taken along the line BB in FIG. 2).

FIG. 4 is a sectional view taken along the line D--D in FIG. 2, and shows the configuration of the screen door device SD which is installed in a plane with each panel suspended.

In FIG. 4, the screen panel 11 and the door panel 12 are respectively suspended from positions near the inner wall 17a of the header box 17, and the inner wall 17a and the inner wall of the screen panel 11 are substantially flush when viewed from the platform side. It is configured. On the other hand, the rail unit 23 is fixed to the stepped portion 4b cut out at the track side edge 4a of the platform 4 using the anchor bolt 24, and the upper surface of the rail unit 23 is substantially flush with the upper surface of the platform. Is configured.

Next, the structure of the emergency escape door device ED, which is a feature of the present invention, will be described.

(A) Axial side structure of the emergency escape door device ED FIG. 5 is a sectional view taken along the line EE shown in FIG. In FIG. 1, the emergency escape door device ED includes an emergency door panel 16 that is pivotally opened and closed about a shaft base, and a lock mechanism that locks the emergency door panel 16 in a closed state.

The emergency door panel 16 includes a header box 17
Are suspended from a rectangular cylindrical frame 25 which is a part of the frame. A universal bearing 30 is fixed to the inner surface of the frame bottom plate 25a, and a bolt 31 is supported on the universal bearing 30. A nut 32 for retaining is screwed into the upper end of the screw portion 31a of the bolt 31, and the screw portion 31a is screwed.
The lower end of “a” is connected to a reinforcing member 33 attached to the upper frame 16 a of the emergency door panel 16.

A barrel-shaped inner cylinder 31b is mounted on the screw portion 31a, and the outer surface of the inner cylinder 31b is supported by rollers 30a housed in the free bearing 30. Thereby, displacement generated in the panel thickness direction between the header box 17 and the rail unit 23 can be absorbed.

On the other hand, a cylindrical engaging hole 16c is formed in the bottom of the lower frame 16b of the emergency door panel 16, and the large-diameter support shaft 3 protrudes upward from the rail unit 23.
4 is inserted into the engagement hole 16c.

The upper end of the support shaft 34 is provided with an annular roller 34a rotatable about the axis of the support shaft 34. The annular roller 34a rotates while contacting the inner surface of the engagement hole 16c. And the inner wall of the engagement hole 16c can be moved up and down.

Reference numeral 35 designates the support shaft 34 as the rail unit 2
3 is a screw for fixing to the top plate 23a. Also,
In the drawing, reference numeral 36 denotes a brush for closing a gap with the door panel 12 to prevent draft from passing therethrough.

FIG. 6 is a sectional view taken along line FF of FIG. 3. In FIG.
A lock mechanism is provided on the hand side of the emergency door panel 16, and the lock mechanism applies an upper rod to a frame (frame) 25 and a rail unit (frame) 23 of the header box 17 supporting the emergency door panel 16. The emergency door panel 16 can be locked in a closed state by advancing the lower rod 40 and the lower rod 41 respectively.

More specifically, a glemon key body (hereinafter abbreviated as “body”) 42 is built in the hand side of the emergency door panel 16, and an operation lever (lock release operation means) 43 called a panic lever is moved in the direction of arrow G in FIG. When pressed down, the upper rod 40 is lowered and the lower rod 41 is raised via a rack and pinion mechanism (not shown) in the main body 42.

A flange plate 40a is formed below the upper rod 40, and a compression coil spring (biasing means) 44 is mounted on the upper rod 40 between the flange plate 40a and the upper surface of the main body 42.

When the operating lever 43 is not operated, the compression coil spring 44 always moves the upper rod 40 upward to insert the upper lock pin (lock member) 40b into the engagement hole 25a provided in the frame 25. The lower rod 41 is always urged downward through the rack and pinion mechanism in order to insert the lower lock pin (lock member) 41b into the engagement hole 23b provided in the rail unit 23. ing.

Therefore, in normal times, even if the emergency door panel 16 is pushed in its thickness direction, it does not open in the turning direction. The engagement holes 25a are arranged on the axis of the upper rod 40, and the engagement holes 23b are arranged on the axis of the lower rod 41.

When the operating lever 43 is pushed down in the direction of arrow G, the fulcrum 4 arranged near the platform of the main body 42 is moved.
The operation lever 43 swings around the center 2a, and the upper rod 4
0 is pulled down against the urging force of the compression coil spring 44, and at the same time, the lower rod 41 is pushed up via the rack and pinion mechanism in the main body 42. That is, the upper rod 40c and the lower rod 41 are retracted in conjunction with each other, whereby the upper lock pin 40b is
From a, the lower lock pins 41b are respectively separated from the locking holes 23b. In the drawing, reference numerals 40b 'and 41b' indicate the positions of the lock pins which have been retracted to the unlock position.

The upper rod 40 is connected to the emergency door panel 16.
The shutter mechanism (release holding means) 46 is provided at an exit portion of the guide cylinder 16d at the outlet of the guide cylinder 16d.

The shutter mechanism 46 is configured to hold the upper lock pin 40b retreated to the unlocked position at the retracted position. More specifically, the shutter mechanism 46 includes an upper plate 46a that is horizontally disposed so as to cover the upper surface of the vertical frame of the emergency door panel 16, and an upper plate 46a.
a lower plate 46b disposed below and facing each other;
It mainly comprises a thin plate-like shutter (locking member) 46c provided so as to be slidable between a and 46b, and a compression spring 46d for urging the shutter 46c toward the track.

FIG. 7 is a plan view taken on line HH of FIG. 6, and shows the shutter mechanism 46 in an enlarged manner. 7A shows a locked state, and FIG. 7B shows an unlocked state. In the following description, the shutter 46
The forward side of c will be described as “front”, and the backward side will be described as “rear”.

In FIG. 7A, the upper plate 46a and the lower plate 46
Between b, a spacer 46e and an L-shaped spacer 46f are interposed so as to surround three rear sides of the shutter 46c. These spacers 46e and 46f guide the direction in which the shutter 46c advances, and regulate the retreat limit.

A U-shaped notch 46g is formed at the rear of the shutter 46c, and a compression spring 46d is disposed in the notch 46g.

The through hole 4 is provided at a position near the front of the shutter 46c.
6j, and this through hole 46j is
When 6c retreats, upper lock pin 40b can be inserted.

A convex piece 4 is provided at the front of the shutter 46c.
6h, and the skirt portion 46i of the convex piece 46h is formed.
A gap s is secured between the upper frame 16e and the inner wall of the upper frame 16e. Therefore, when the shutter 46c is urged by the compression spring 46d, the shutter 46c slides by the gap s, and
Opening 1 formed by cutting out a part of the upper end of upper frame 16e
The convex piece 46h can be made to protrude from 6f. Further, the tip of the convex piece 46h is L
It is bent in the shape of a letter and constitutes a contact surface 46h 'that can contact a stopper (stop piece) 48 described later.
In a frame structure in which the lower portion of the frame 25 covers the upper frame of the emergency door panel 16, the stopper 4
8 can be substituted by the frame 25 wall surface.

Reference numeral 47 denotes an upper plate 46a and a spacer 46.
e, 46f and bolts for connecting and fixing the lower plate 46b in this order.

Next, the operation of the shutter mechanism 46 will be described.

Normally, the emergency door panel 16 is held in a locked state so as not to inadvertently turn and open. That is, as shown in FIG. 7A, the convex piece 46h is in contact with a plate-shaped stopper 48 (see FIG. 6) which is hung from the frame 25 of the header box 17, whereby the shutter 46c is moved. The upper lock pin 40b retreats against the urging force of the compression spring 46d, advances through the through hole 46j, and is inserted into the engagement hole 25a of the frame 25. In addition, since the upper lock pin 40b and the lower lock pin 41b advance and retreat in conjunction with each other, the lower lock pin 41b similarly advances and is inserted into the engagement hole 23b of the rail unit 23.

Next, when an emergency such as a vehicle fire occurs, when the operation lever 43 is pressed down, the upper lock pin 40 is depressed.
b and the lower lock pin 41b are respectively retracted, and the shutter 4
6 c is slightly (3 mm) from the stopper 48.
About) away. At this time, as shown in FIG. 7B, the convex piece 46h is urged by the compression spring 46d and slides forward, and the through hole 46j of the upper plate 46a and its shutter
The through hole 46k of 6c is shifted. As a result, since the exit of the upper lock pin 40b that is retracted is closed, the upper lock pin 40b is retracted,
That is, it is held at the unlocked position.

Although the lower lock pin 41b is not provided with the shutter 46c, it is held at the retracted position by interlocking with the upper lock pin 40b.

Since the unlocked state of the emergency door panel 16 is maintained even if the hand is released from the operation lever 43, the emergency door panel 16 can be easily opened by manually pushing the emergency door panel 16 toward the platform. Can be.

Further, since the stopper 48 is provided on the upper frame 25, no obstacle is projected on the floor, so that the passenger can safely escape without being affected by the obstacle. it can.

(C) Door Closer for Emergency Door Panel FIG. 8 is an enlarged view of part I of FIG.

In the figure, a door closer D indicated by a two-dot chain line is provided in a header box 17 on the emergency door panel 16.
A main body 50 of C is accommodated, and a tip 50 c of an arm 50 b extending from an output shaft 50 a of the main body 50 is connected to an upper frame 16 a of the emergency door panel 16.

The arm tip 50c is provided with a roller 50d rotatable about a vertical axis.
The emergency door panel 16 is fitted into a groove 16g formed in the top panel 16a of the upper frame 16a, and moves along the groove 16g. In the drawing, reference numeral 51 denotes a fulcrum of the emergency door panel 16 which is opened and closed in the direction C.

The door closer DC urges the manually opened emergency door panel 16 in a direction for closing the emergency door panel 16 (the direction opposite to the direction of arrow C).
6 is closed to isolate the platform 4 from the track, thereby ensuring passenger safety.

When the emergency door panel 16 is automatically closed by the door closer DC, FIG.
As shown in FIG. 7, the convex piece 46h of the shutter 46c abuts against the stopper 48, so that the shutter 46c retreats against the urging force of the compression spring 46d, and the through hole 46k of the shutter 46c and the through hole of the upper plate 46a. 46j correspond to each other so that the upper lock pin 40b is aligned with the through holes 46j and 46j.
k, and is inserted into the engagement hole 25a of the frame 25. The lower lock pin 41b interlocking with the upper lock pin 40b is inserted into the engagement hole 23b of the rail unit 23.

Therefore, the emergency door panel 16 is automatically closed, and the closed emergency door panel 16 can be automatically locked and closed.

Although the lock member of the present invention is configured to advance and retreat from the emergency door panel to the frame in the above embodiment, the lock member may be configured to advance and retreat from the frame to the emergency door panel. Good. However, in that case, the lock release operation means and the stopper for stopping the lock release holding are provided on the frame body side.

In the above embodiment, the unlocking operation means is constituted by an operation lever provided on the track side of the emergency door panel. However, the present invention is not limited to this, and may be constituted by a key provided on the platform side of the emergency door panel. it can. However, in this case, the lock member is switched to the unlock position based on the unlocking operation.

In the above embodiment, the release holding means is constituted by a shutter capable of closing the outlet of the lock pin.
The present invention is not limited to this, and the shutter may be engaged and disengaged with a notch formed in the body of the lock pin, and a through hole formed in the body of the lock pin in the radial direction may be provided. A pin may be inserted and removed.

In the above embodiment, the emergency escape door device according to the present invention is applied to a platform. However, the present invention is not limited to this, and is used for emergency escape of an automatic door installed in a building such as a building or a factory. It can also be applied as

[0074]

As is apparent from the above description,
According to the first aspect of the present invention, when the lock is released by retracting the lock member against the urging force of the urging means, the release holding means continues to hold the lock member at the retracted position, so that the evacuee There is no need to perform a complicated operation of pressing the emergency door panel while continuing to operate the unlock, and the emergency door panel can be easily opened by performing the unlock operation once.

According to the second aspect of the present invention, when the emergency door panel is closed, the release holding means stops unlocking and holding, so that the lock member is switched to the locked position by the urging force of the urging means, and the emergency door panel is closed. Locked in position. Therefore, since the emergency door panel is automatically locked when closed, it is possible to prevent an accident due to forgetting to lock.

According to the third aspect of the present invention, the lock member is constituted by a rod which can move forward and backward, and the release and holding means is constituted by a lock member which can be engaged with and disengaged from the rod. Can extend the rod, thereby locking the emergency door panel. Further, when the unlocking operation is performed, the locking member moves to the position where the rod is prevented from advancing in conjunction with the retraction of the rod, so that the emergency door panel can hold the unlocked state.

According to the fourth aspect of the present invention, when the emergency door panel is closed, the locking member comes into contact with the frame or the stop piece extended from the frame, and the rod is moved to a position where the rod can be advanced. Because of the movement, the lock can be restored without requiring any special device.

According to the fifth aspect of the present invention, the locking member is
Since it is constituted by a slidable shutter having a through-hole, the rod can be advanced through the through-hole at the time of locking, and the position of the through-hole can be moved from the locked position at the time of unlocking. It can be realized with a configuration.

Further, since the locking member is constituted by, for example, a shutter made of a thin plate member, it can be compactly accommodated in the upper frame of the emergency door panel where space is limited, and the design is not spoiled.

According to the sixth aspect of the present invention, since the emergency door panel opened at the time of escape is automatically closed by the door closer, the emergency door panel is quickly closed after the evacuee escapes. Moreover, the closed emergency door panel can be automatically locked by cooperating with the release holding means for stopping the unlocking when the emergency door panel returns to the closed position.

Further, since the door closer body is accommodated in the frame, the thickness of the upper frame of the emergency door panel can be reduced, and the appearance of the emergency door panel can be enhanced.

According to the present invention, the telescopic arm can be connected via the roller only by providing a groove in the upper frame of the emergency door panel.

According to the eighth aspect of the present invention, the emergency escape door device can be opened with a simple operation, and the evacuation can be quickly evacuated from the track side to the platform side. Further, in the vehicle equipped with the door closer, it is possible to prevent the emergency door panel from being forgotten to be locked, thereby ensuring the safety of passengers on the platform. Furthermore, when the door closer main body is housed in the frame, the flat screen structure of the platform screen door can be maintained to improve the appearance.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a screen door to which an emergency escape door device according to the present invention is applied.

FIG. 2 is an enlarged view showing a screen panel for one unit, which is a portion A in FIG. 1;

FIG. 3 is a plan view showing an arrangement of a screen panel, a door panel, and an emergency door panel.

FIG. 4 is a vertical sectional view taken along the line DD in FIG. 2;

FIG. 5 is a vertical sectional view taken along the line EE of FIG. 2;

FIG. 6 is a longitudinal sectional view showing a configuration of the emergency escape door device.

FIGS. 7A and 7B are views taken in the direction of arrows HH in FIG. 6, wherein FIG. 7A is a plan view showing a locked state, and FIG.

FIG. 8 is an operation explanatory view of a door closer that opens and closes an emergency door panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Screen panel 12, 13 Door panel 14 Screen door unit 15 Screen door ED Emergency escape door device DC door closer 16 Emergency door panel 17 Header box 23 Rail unit 25 Frame 40 Upper rod 40b Upper lock pin 41 Lower rod 41b Lower lock pin 42 Glenemon lock body 43 operation lever 46 shutter mechanism 46c shutter

Claims (8)

[Claims] 1. An emergency door panel which is pivotally opened and closed,
This emergency door panel is normally locked in the closed state,
An emergency escape door device configured to be able to release and unlock the lock by receiving a lock release operation, wherein the emergency escape door device is provided on one side of the emergency door panel or a frame supporting the emergency door panel, A lock member that is switched between a lock position and a release position for releasing the lock, a biasing unit that constantly biases the lock member toward the lock side, and a release position that releases the lock member against a biasing force of the biasing unit. Emergency evacuation, characterized by comprising: a lock release operating means for switching to a release position; Door device. 2. The emergency escape door device according to claim 1, wherein the release holding means is configured to stop holding the lock release when the emergency door panel returns to the closed position. 3. The lock member comprises a rod which locks when it advances, and releases the lock when it retreats, and the release holding means has a locking member which can be disengaged from the rod. The locking member moves to a position where the rod can be advanced when the emergency door panel is closed, and prevents the rod from being advanced in conjunction with the retraction of the rod when an unlocking operation is performed. The emergency escape door device according to claim 1, wherein the emergency escape door device is configured to move to a position where the emergency escape door moves. 4. The locking member is in a position where the rod can be advanced by abutting on the frame or a stop piece extending from the frame when the emergency door panel is closed. 4. The emergency exit door device according to claim 3, wherein the emergency exit door device is configured to move. 5. The lock member comprises a shutter having a through hole and slidably movable, wherein the rod is advanced through the through hole when locked, and the position of the through hole is moved from the locked position when unlocked. The emergency escape door device according to claim 3 or 4, wherein the emergency escape door device is configured to be operated. 6. A door closer having a door closer body and a telescopic arm extending from the door closer body, wherein the telescopic arm is connected to the emergency door panel so that the emergency door panel opens and closes as the telescopic arm expands and contracts. The emergency escape door device according to any one of claims 1 to 5, wherein the emergency exit door device is configured to bias the telescopic arm in a direction to close the emergency door panel, and is housed in the frame. 7. The emergency escape door device according to claim 6, wherein a roller provided at a distal end portion of the telescopic arm is configured to roll in a groove formed along the emergency door panel upper frame. 8. An emergency escape door device for a platform screen door, wherein the emergency escape door device according to any one of claims 1 to 7 is disposed on a part of the platform screen door.